Does anyone know if any records still exist circa 1830-1850 for the glassmaking trade in the Dungannon area. I'd be interested in knowing if any lists of former employees still exists. I believe that my gggGrandfather, James McFadden and several of his eldest sons (James Jr, Charles, Matthew, William) were employed in that trade. One of James Sr's grandsons, Alexander McFadden went on to co-found Brockway Glass in America. Thanks for any info/help.